大清河淀西平原地下水数值模型研究  

Numerical Model on Groundwater in the Dianxi Plain of Daqing River

作　　者：李巍[1,2] 郭抒燕 薛丽娟[2] 丁晓梦 LI Wei;GUO Shu-yan;XUE Li-juan;DING Xiao-meng(Haihe River Water Conservancy Commission,MWR,Tianjin 300170 China;Tianjin Lonwin Technology Co.,Ltd.,Tianjin 300161,China)

机构地区：[1]水利部海河水利委员会,天津300170 [2]天津市龙网科技发展有限公司,天津300170

出　　处：《海河水利》2023年第10期83-86,93,共5页Haihe Water Resources

摘　　要：分析了大清河淀西平原水文地质条件、含水组划分以及地下水开发利用状况,结合地下水数值模型技术,利用优化的MODFLOW对研究区地下水建立地下水概念模型、数学模型以及长序列数值模型,通过模型的拟合验证确定了模型的准确性。在此基础上,建立了大清河淀西平原地下水预测模型,分析了地下水流场变化趋势。从总体的预测结果来看,在南水北调压采方案实施后地下水环境得到了较好改善,有效地控制了现有降落漏斗的扩大和加深,对于缓解受水区的地下水亏损状况和平原区的地下水紧张局面、涵养和保护地下水资源起到了很好的积极作用。The hydrogeological conditions,aquifer group division and groundwater development and utilization status of the Dianxi Plain of Daqing River were analyzed,combined with the groundwater numerical model technology,the conceptual model of groundwater,mathematical model and long series numerical model of groundwater in the study area were established by using the optimized MODFLOW,and the accuracy of the model was determined by the fitting verification of the model.On this basis,a groundwater prediction model was established in the Dianxi Plain of Daqing River,and the change trend of groundwater flow field was analyzed.According to the overall prediction results,the groundwater environment has been well improved after the implementation of the South-to-North water pressure regulation and mining plan,and the expansion and deepening of the existing landing funnel have been effectively controlled,which plays a good and positive role in alleviating the loss of groundwater in the receiving area and the groundwater tension in the plain area,and conserving and protecting groundwater resources.

关 键 词：MODFLOW源程序优化 长序列地下水数值模型 大清河淀西平原 地下水涵养 

分 类 号：P334.92[天文地球—水文科学]